Seiko Cal. 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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