Seiko Cal. 3870 - 520

Seiko 3870-520

This Quartz model from 1986 features a 41mm Titanium case. Powered by the 3870 caliber with 24j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-8e4d0647f94f]

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
41mm
Case Thickness
8.0mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1986

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