Black Calculator, Clear Pointer
Chronograph 6138-7000 — Black Calculator, Clear Pointer
Large steel case with a black dial, metallic grey registers and orange chronograph hands. Its calculation bezel retains the transparent secondary pointer described by the dealer. The photographed back, title and specifications identify 6138-7000; the URL’s 7001 is a conflicting old slug.
Dealer specimen attribution: 1971, partly masked serial 1DXXXX. The dealer records previous light polishing and an original bracelet with light stretch. Its listed 45 mm size is retained for this specimen; the earlier 44 mm reference-level estimate is preserved separately. No production range, current accuracy or warranty is asserted.
Variants of 6138-7000
Reference overview →| Variant | Production |
|---|---|
| Black Calculator, Clear PointerCurrent | Undated |
Case & movement
- Reference
- 6138-7000
- Production
- Undated
- Case material
- Stainless steel
- Case diameter
- 45 mm
- Movement
- Automatic
- Caliber
- Seiko 6138 family — 6138 family identified by exact dealer source, caseback and open-movement photographs. A/B suffix and jewel count not independently assigned.
Dial, bezel & hands
- Dial colour
- Matte black with metallic grey registers
Movement
Seiko 6138 family
Automatic day-date chronograph family with elapsed-hour and 30-minute counters. The exact A/B movement suffix, jewel count and originality of fitted components require specimen-specific evidence; none is inferred from a case reference alone.