Seiko Cal. 4531 - 305

Seiko 4531-305

This Automatic model from 1970 features a 40mm Two-Tone case. Powered by the 4531 caliber with 26j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-27f10db27c0d]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
40mm
Case Thickness
9.5mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Champagne
Jewels
26j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1970

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