Seiko Cal. 0731 - 404

Seiko 0731-404

This Automatic model from 1990 features a 40mm Hardlex-Coated Steel case. Powered by the 0731 caliber with 30j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-331f21e00992]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
10.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
70m
Dial Color
Navy
Jewels
30j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1990

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seikata-wm-331f21e00992