Seiko Cal. 3831 - 477

Seiko 3831-477

The 3831-477 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3831 caliber with 31j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-5521ab42b750]

Also known as: Bullhead

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
14.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Navy
Jewels
31j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1984

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seikata-wm-5521ab42b750