Seiko Cal. 3859 - 634

Seiko 3859-634

This Hand-Winding model from 1967 features a 37mm Two-Tone case. Powered by the 3859 caliber with 18j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-1d7af684525c]

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
37mm
Case Thickness
14.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
30m
Dial Color
Cream
Jewels
18j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1967

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