Seiko Cal. 5637 - 148

This Automatic model from 1991 features a 43mm Gold-Plated case. Powered by the 5637 caliber with 22j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-0b954dbdebee]

Also known as: Tuna, Pogue

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1991

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