Seiko Cal. 3870 - 103

Seiko 3870-103

This Solar model from 1980 features a 44mm Hardlex-Coated Steel case. Powered by the 3870 caliber with 26j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-ea60b55db49b]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
9.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Black
Jewels
26j
Frequency
36,000 bph
Power Reserve
62 hours
Year
1980

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