Seiko Cal. 3857 - 618

Seiko 3857-618

This Hand-Winding model from 1976 features a 40mm Two-Tone case. Powered by the 3857 caliber with 18j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-0ad496ff89cb]

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
40mm
Case Thickness
12.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Navy
Jewels
18j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1976

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