KRIS'S WATCH GARAGE

🕰️ vintage seiko & citizen restoration log 🕰️ tsudanuma, chiba, japan 🕰️

⭐ EST. 2026 ⭐ 🔧 SITE UNDER CONSTRUCTION 🔧 BEST VIEWED IN NETSCAPE NAVIGATOR 🌐 800x600 🌐

★ UPDATED ★ — TWO NEW BUYS + FIRST RUNNING-RATE DATA! the rust bomb LIVES!!

>> TABLE OF CONTENTS <<

01. The Collection (specs & condition)
02. The Money Page (buy cost / resale / profit)
03. Collection Patterns & Notes
04. Restoration Focus Areas
01b. Running-Rate Baseline
01c. Service History
05. Toolbox Status
06. Learning Resources
07. Scouting Watchlist

📁 01. THE COLLECTION

① SEIKO 5 ACTUS — the crown jewel

★★★★★

Reference / Caliber	7019-7060 \| Cal. 7019, 21 jewels, automatic
Era	circa 1973–74
Buy price	¥2,400
Condition	Fine dial scratches, small crystal edge chip. Faceted lugs still sharp, no water staining.
Repairs needed	Standard full service, crystal polish or replace
Est. resale (JP / intl)	¥6,000–15,000+ / $75–300

> service this one first. best margin of the whole lot.

② CITIZEN HI-BEAT (Cosmostar family)

★★★★☆

Reference / Caliber	Case 4-661273 TA \| Cal. 6600, hi-beat 28,800bph
Era	early-to-mid 1970s
Buy price	¥2,000
Condition	Dial clean, gradient intact. ✅ The apparent "crack" is a faceted / cut crystal — a 1970s design feature that throws light off defined edges. NOT damage.
Repairs needed	Standard service + light facet polish if scratched. No scarce parts needed.
Est. resale (JP / UK)	¥3,000–8,000 / £20–60

> risk removed — no crystal hunt required. straightforward service job now.

③ SEIKO 5 DX

★★☆☆☆

Reference / Caliber	6106-8130 \| Cal. 6106A, 25 jewels (listing typo'd 8180)
Era	December 1968
Buy price	¥4,100
Condition	Heavy dial water staining / tide marks. Case back scratched but legible.
Repairs needed	Full teardown, rust check, gaskets, crystal, dial decision (patina vs. donor)
Est. resale (JP / UK)	¥3,000–8,000 / £30–60

> open it up and check for movement rust. this one's a gamble.

④ SEIKO QUARTZ 7N01

★★☆☆☆

Reference / Caliber	Listed 7N01-0DM0 (dial engraved 7N01-0SL4)
Era	1980s–90s quartz
Buy price	¥1,500
Condition	Heavy foxing / mold speckling across whole dial. Genuine Seiko bracelet, decent shape.
Repairs needed	Battery swap only. Dial not salvageable.
Est. resale (JP)	¥1,000–3,000

> low effort, low margin. sell as-is or part out the bracelet.

⑤ SEIKO 5 — THE RUST BOMB

★☆☆☆☆ (unrated — lottery ticket)

Reference / Caliber	6119-7130 \| Cal. 6119, 21 jewels
Era	early-to-mid 1970s
Buy price	¥1,000
Condition	Active rust bloom on dial (iron oxide). Cloudy/hazed crystal. New non-original strap fitted.
Repairs needed	⚠ Open case back FIRST, check movement for corrosion before investing time
Est. resale (JP)	¥0 (parts) – ¥5,000 (if salvageable)

> at ¥1000 it's basically free education either way.

⑥ SEIKO HI-BEAT (ladies) NEW!

★★★★☆

Reference / Caliber	2706-0290 \| Cal. 2706, 21 jewels, hi-beat
Era	1970s
Buy price	¥2,100
Condition	Clean green sunburst dial, no staining or foxing. Non-original leather strap.
Repairs needed	Standard service, crystal polish. No hand-winding assumptions — test by feel.
Est. resale (JP / intl)	¥3,000–8,000 / $30–90

> ladies' size narrows the buyer pool, but great dial + hi-beat movement. hold for a timegrapher check.

⑦ SEIKO SPORTSMATIC 5 — original lineage NEW!

★★★★☆

Reference / Caliber	6619-9010
Era	mid-1960s — birth of the Seiko 5 line
Buy price	¥840
Condition	Mild yellow/amber dial discoloration (early lacquer aging, not active rust). Crystal scratched, no crack. Day-date appears functional.
Repairs needed	Standard service, watch the discoloration for progression
Est. resale (JP)	¥3,000–7,000, more if marketed on its early-lineage story

> excellent margin at ¥840. genuine "start of the Seiko 5 line" collector story.

⑧ SEIKO CAL. 7006A — gold-plated NEW!

★★★☆☆

Reference / Caliber	7006-8000 series \| Cal. 7006A, 21 jewels
Era	1970s
Buy price	TBD — price not yet confirmed
Condition	Dial genuinely clean, sharp markers, day-date reads "SUN 1." Gold plating brassing through on case, especially lugs. Movement dusty but no obvious rust.
Repairs needed	Service; case plating wear likely not economical to fix — sell as "honest wear"
Est. resale (JP)	¥2,000–5,000

> good dial saves this one from junk-tier despite the case wear. update price when known!

⑨ CITIZEN CRYSTAL SEVEN — the dark horse NEW!

★★★★★

Reference / Caliber	ACSS 2925-Y \| Cal. 1202-1K
Line	Crystal Seven — Citizen's flagship automatic series, launched 1965
Era	late 1960s – early 1970s
Serial / case marks	70607265 \| GN2, "PARA WATER"
Complications	Day-date, kanji day wheel (木 = Thursday)
Jewel count	Likely 27 (printed on dial) — ⚠ CONFIRM against movement stamp when case back is off. Crystal Seven spanned 21J to a rare 43J flagship, and this number swings the value more than anything else here.
Case / bracelet	Stainless steel, matching honeycomb-link bracelet, ~17.5cm wrist
Buy price	¥1,500
Condition	Dial clean and legible, no staining or foxing. Case back sharp and fully legible. Bracelet light wear/spotting. Listed as 稼働 (running).
Unverified specs	Beat rate, power reserve, hand-winding, hacking — no confirmed data for cal. 1202. Assume no hacking (nothing this era does); test hand-winding by feel.
Repairs needed	Open case back, confirm jewel count + check movement condition, then standard service
Est. resale	Wide range pending jewel count — clean higher-jewel examples comp at $150–350+

> if 27J confirms, this is likely the most valuable piece in the collection — above the Actus. take the most care over this service.

⑩ CITIZEN COSMOSTAR V2 — the ¥400 steal NEW!

★★★★☆

Reference	64-3815 \| ladies' automatic
Caliber	⚠ UNCONFIRMED — "V2" is the line name, not the movement number. Check the stamp when the back comes off.
Beat rate / jewels	28,800 bph, 17 jewels (printed on dial)
Complications	Day-date, English day wheel
Bracelet	Original stepped-link, period-correct — real value on its own
Buy price	¥400 + ¥230 shipping — best cost basis in the collection
Condition	Honest dial age, mottling/light spotting on lower half. No rust bloom, no tide marks. Lug and bezel wear, bracelet stretch (normal). Listed 稼働.
Watch out	Citizen proprietary line — parts scarcer than Seiko equivalents. Don't break anything.
Est. resale	¥3,000–7,000 serviced with original bracelet

> ladies' vintage is where everyone stops looking. strongest margin ratio on the board.

⑪ CITIZEN ATTESA — the modern outlier NEW!

★★★☆☆

Reference	A411-T001165 \| Eco-Drive 電波ソーラー (radio sync)
Case / bracelet	Titanium — light, hypoallergenic, corrosion-proof, scratch-prone
Full set?	YES — original box + manual. Worth ¥2,000–3,000 over a bare watch on modern Citizen.
Buy price	TBD — won at auction, final price not yet logged
First action	CHARGE IT. Direct sun several hours / full day. A flat Eco-Drive won't run or sync — don't judge it until charged.
Then check	1) Single ticks or 2-second jumps? (2-sec = low charge warning) 2) Does it sync overnight, dial-up near a window?
Risk	Rechargeable cell degrades after 15–20 yrs. Charges in sun but dies indoors = dead cell = Citizen service job, not a bench job.
Est. resale	¥8,000–15,000 working full-set. If cell is dead, sell as-is with box.

> FLIP ONLY — you add nothing to this mechanically. off-strategy, but the full set redeems it.

⏱️ 01b. RUNNING-RATE BASELINE NEW!

Recorded before any service work. These are the before-numbers that let you honestly list a watch as serviced later. Log the date every time.

Watch	Status	Note
⑤ 6119 rust bomb	RUNS, +1–2 min/day fast	⭐ Movement is fundamentally intact. Gaining = likely magnetised hairspring or coils sticking from old oil. Both fixable. Corrosion is a dial problem, not a movement problem.
⑨ Citizen Crystal Seven	NEAR PERFECT	Mechanical risk basically gone. Still confirm jewel count.
③ Seiko 5 DX 6106	RUNNING FINE	Matches the service marks on the case back (Showa 57.8 / 58.3 = 1982/83) — see Service History.
⑦ Sportsmatic 6619	NEEDS MORE RUN TIME	Give it 48h on wrist/winder before judging — old oil often frees up.
① Actus 7019	NEEDS MORE RUN TIME	Same — 48h before calling a rate.
⑧ Seiko 7006A gold	NON-RUNNER	Cheapest-first: 1) shake, watch for any second-hand twitch 2) check rotor is tight (commonest cause) 3) if rotor fine → congealed mainspring grease. Can't hand-wind a 7006A — rotor or nothing.

🔍 01c. SERVICE HISTORY — CASE-BACK MARKS NEW!

Watchmakers scratch the service date inside the case back so the next person knows when it was last opened. Standard practice. This is the data nobody tracks well — start here.

③ Seiko 5 DX 6106	Marks in Showa year.month format (Japanese convention — serviced domestically). • 57.8 → August 1982 • 58.3 → March 1983 • Further marks below, too overlapped to read confidently Conversion: Showa year + 1925 = Western year. Read: maintained rather than run into the ground — better history than most junk-bin finds. But 40+ years since the last service, so all lubricant is fully degraded. Dirty, probably not damaged. Consistent with it running fine now.
⑤ Seiko 6119 rust bomb	Marks in Latin script, day-month-year — NOT Japanese format. • 22-9-90 → 22 September 1990 (clearest) • MAY 22 and 27/93 → likely May 1992 and something in 1993 • Several older marks underneath, layered and unreadable Read: almost certainly serviced outside Japan. Seiko 5s sold enormously across Southeast Asia, the Middle East and South Asia, and the handwriting convention fits. That is the likeliest explanation for the rust — decades in a hot, humid climate with a 50-year-old gasket. Came back to Japan later, probably in a bulk lot, which is how it reached the junk bin. At least three services documented, last around 1993. 30+ years since. Used and maintained a long time before someone gave up on it.

⭐ THE HABIT TO START: when you service a watch, add your own mark in the same place, same format — date + initials. It is the convention, it is provenance, and it is the beginning of the service-history record that is your actual differentiator. Nobody does this well. Log it here too: date, oils used, parts replaced, amplitude before/after.

💴 02. THE MONEY PAGE

Watch	Buy (¥)	Est. Resale JP (¥, mid)
① Seiko 5 Actus	2,400	~10,500
② Citizen Hi-Beat 6600	2,000	~5,500
③ Seiko 5 DX 6106	4,100	~5,500
④ Seiko Quartz 7N01	1,500	~2,000
⑤ Seiko 6119 (rust)	1,000	~2,000 (uncertain)
⑥ Seiko Hi-Beat 2706	2,100	~5,500
⑦ Sportsmatic 6619-9010	840	~5,000
⑧ Seiko 7006A (gold)	TBD	~3,500
⑨ Citizen Crystal Seven	1,500	~15,000 (if 27J confirms)
⑩ Citizen Cosmostar V2	400	~5,000
⑪ Citizen Attesa (Eco-Drive)	TBD	~11,500 (if cell healthy)
TOTAL (9 priced)	¥15,840	~¥56,000

Gross margin (9 priced watches, before costs):

~¥40,000

Less: parts / gaskets / battery (est.):

−¥4,000 to −¥6,000

Less: marketplace fees (~10%):

−¥5,000

Realistic net profit:

~¥28,000 – ¥30,000

⚠ biggest swing factors: the Crystal Seven's jewel count (huge upside if 27J confirms), and whether the 6119's movement survived the rust. Add #8 and #11's real buy prices once known. NEW: the 6119 rust bomb RUNS (+1–2 min/day) — upside revised, it is a servicing candidate after all. ✅ The Citizen 6600's "cracked crystal" turned out to be a faceted/cut crystal — a 1970s design feature, not damage. No sourcing cost after all.

🔎 03. COLLECTION PATTERNS & NOTES

Caliber spread: eleven watches, ten-plus different calibers (7019, 7N01, 6106, 6119, 2706, 6619, 7006A, Citizen 6600, Citizen 1202, Cosmostar V2 tbc, Eco-Drive A411) — zero overlap. THREE HI-BEATS NOW (Citizen 6600, Seiko 2706, Cosmostar V2) — all 28,800 bph, all need a timegrapher before regulating. Great for broad repair exposure across the whole Seiko automatic family tree, less good for building deep repetition-speed on any single caliber.

Accidental timeline: Sportsmatic 6619-9010 (mid-1960s, birth of Seiko 5) → DX 6106 (1968) → 6119 / 7019 / 2706 / 7006A generation (early-mid '70s) → 7N01 quartz (1980s–90s). A genuinely tellable "evolution of Seiko 5" story if you ever display or sell them as a set.

Condition tiers: Ready-to-service (Actus, Sportsmatic 6619, 2706 Hi-Beat) | Fixable-with-a-blocker (Citizen crystal, 7006A case plating) | High uncertainty (DX water staining, 6119 rust, 7N01 foxing).

Hi-beat pair: Citizen 6600 and Seiko 2706 are both 28,800bph — the two pieces where a timegrapher actually matters before calling service "done."

Size/gender mix: everything men's-sized except the 2706 Hi-Beat (ladies') — narrower buyer pool, factor into sell order.

🔨 04. RESTORATION FOCUS AREAS

Priority 1	Crystal Seven — open case back, CONFIRM JEWEL COUNT first. Potentially the most valuable piece in the collection.
Priority 2	Actus — full service + crystal work. Ready to go, strong return.
Priority 3	Sportsmatic 6619-9010 — clean condition, cheapest buy, great margin. Quick win.
Priority 4	Cosmostar V2 — ¥400 buy, running, original bracelet. Confirm caliber, then service. Best margin ratio on the board.
Priority 5	6119 rust bomb — ⭐ UPGRADED: it RUNS at +1–2 min/day. Movement is sound. Demagnetise + service, treat the rust as cosmetic-only.
Priority 6	2706 Hi-Beat — service + timegrapher check once available.
Priority 7	Citizen 6600 — straightforward service (crystal is fine after all).
Priority 8	7006A gold — NON-RUNNER. Diagnose rotor first, then mainspring. Decide if case wear is worth addressing.
Priority 9	DX Seiko — full teardown to check rust damage, decide dial fate.
Priority 10	Quartz 7N01 — battery check only, list as-is.
Priority 11	Attesa — charge, test sync, photograph with box, list. No bench work.

🧰 05. TOOLBOX STATUS

✅ Movement holder (adjustable, 26–34mm)
✅ Case back knife/opener (notched snap-fit type)
✅ Hand-setting press, 6 die shapes
✅ Oils: 701 / 702 / 902
✅ Crystal polish: Polywatch / Pikal (acrylic only)
✅ Case metal polish: Pikal
⬜ Case closing press (even gasket seating)
⬜ Mainspring winder (hold off — not needed yet)
⬜ Timegrapher — NOW THE NEXT BUY. Three hi-beats in the collection (6600, 2706, Cosmostar V2). Ahead of the case press.
⬜ Moebius 9010 (upgrade oil for pieces sold as "fully serviced" — start with the Actus)

📚 06. LEARNING RESOURCES

YouTube: The Nekkid Watchmaker (Joe) — professional service/restoration channel, no gatekeeping, exactly this era of Seiko.

YouTube: Watch Repair Channel — the other most-recommended channel for hands-on vintage Seiko teardown/service.

Search tip: search by caliber number alone ("Seiko 7019 service", "Seiko 6119 service") not the full case reference — parts diagrams and guides are keyed to the movement, not the dial/case variant.

Forums: WatchUSeek — biggest vintage Seiko community, deep dating/reference threads.

Forums: Watch Repair Talk — beginner-friendly board, people posting their own repair journeys.

Reddit: r/Seiko and r/watchrepair for quick sanity checks.

Parts suppliers (bookmark before you need them): Cousins UK, Jules Borel.

🔍 07. SCOUTING WATCHLIST (seen, not yet bought)

AUCTION — BID SUGGESTED ¥3,000–4,500
Seiko 5 Sports, ref. 4R36-00D0 — modern cal. 4R36, gold-tone bezel, exhibition case back, ~2010s worldtimer-family. Heavy crystal gunk — unclear if external grime or seal failure. First candidate for practicing screw-down gasket work.

JUNK LOT — ~¥500–1,500 MAX
Seiko Sportsmatic 5, first-generation (S113 listing) — severe scratched dial, cracked crystal, corroded case. Treat as parts/practice only, no cosmetic upside. Interesting lineage story but won't move resale on a piece this rough.

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