Seiko Cal. 3870 - 664

Seiko 3870-664

This Quartz model from 1965 features a 37mm Hardlex-Coated Steel case. Powered by the 3870 caliber with 31j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-9381d83a0b90]

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
10.8mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1965

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seikata-wm-9381d83a0b90