Seiko Cal. 7157 - 321

Seiko 7157-321

This Quartz model from 1977 features a 37mm Titanium case. Powered by the 7157 caliber with 34j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-61bf3a9cb548]

Also known as: Monster, Tuna

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
37mm
Case Thickness
12.3mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
170m
Dial Color
Cream
Jewels
34j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1977

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seikata-wm-61bf3a9cb548