Seiko Cal. 3830 - 634

Seiko 3830-634

This Automatic model from 1966 features a 36mm Hardlex-Coated Steel case. Powered by the 3830 caliber with 33j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-264e7b15deae]

Also known as: Bellmatic

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
14.7mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
120m
Dial Color
Silver
Jewels
33j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1966

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