Seiko Cal. 3860 - 916

Seiko 3860-916

This Solar model from 1965 features a 40mm Hardlex-Coated Steel case. Powered by the 3860 caliber with 20j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-3a958ad04dba]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
12.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
40m
Dial Color
Navy
Jewels
20j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1965

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