Seiko Cal. 3874 - 629

Seiko 3874-629

This Automatic model from 1975 features a 46mm Hardlex-Coated Steel case. Powered by the 3874 caliber with 20j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-fdccc8056343]

Also known as: Monster, Bullhead

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
9.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Silver
Jewels
20j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1975

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