Seiko Cal. 3857 - 183

Seiko 3857-183

This Automatic model from 1977 features a 45mm Hardlex-Coated Steel case. Powered by the 3857 caliber with 29j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-ec9d2776ec8f]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
10.8mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
30m
Dial Color
White
Jewels
29j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1977

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