Seiko Cal. 5637 - 793

Seiko 5637-793

This Automatic model from 1978 features a 39mm Stainless Steel case. Powered by the 5637 caliber with 23j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-14068a12847b]

Also known as: Shogun, Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
12.4mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
90m
Dial Color
Cream
Jewels
23j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1978

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seikata-wm-14068a12847b