Seiko Cal. 5631 - 763

Seiko 5631-763

This Automatic model from 1997 features a 44mm Stainless Steel case. Powered by the 5631 caliber with 28j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-7180cd69fe71]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
12.6mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Navy
Jewels
28j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1997

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seikata-wm-7180cd69fe71