Seiko Cal. 7137 - 131

Seiko 7137-131

This Spring Drive model from 1980 features a 38mm Titanium case. Powered by the 7137 caliber with 30j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-f9da9a5605fd]

Also known as: Crown, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
38mm
Case Thickness
15.5mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Cream
Jewels
30j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1980

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