Seiko Cal. 5631 - 905

Seiko 5631-905

This Automatic model from 1993 features a 41mm Two-Tone case. Powered by the 5631 caliber with 17j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-d1486b1da36d]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
41mm
Case Thickness
9.9mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
90m
Dial Color
Silver
Jewels
17j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1993

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