Seiko Cal. 4431 - 674

Seiko 4431-674

This Hand-Winding model from 1987 features a 44mm Titanium case. Powered by the 4431 caliber with 26j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-69c19a209509]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
44mm
Case Thickness
10.6mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
30m
Dial Color
White
Jewels
26j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1987

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seikata-wm-69c19a209509