Seiko Cal. 6157 - 697

Seiko 6157-697

This Quartz model from 1972 features a 42mm Hardlex-Coated Steel case. Powered by the 6157 caliber with 32j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-2cd43f1456b3]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
9.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
200m
Dial Color
Burgundy
Jewels
32j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1972

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