Seiko Cal. 3870 - 120

Seiko 3870-120

The Seiko 3870-120 represents an important milestone in Seiko's 1984 lineup. Powered by the 3870 caliber with 20j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-1090892dc7ae]

Also known as: Turtle, Helmet

Specifications

Movement
Solar
Case Material
Titanium
Case Width
34mm
Case Thickness
9.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
White
Jewels
20j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1984

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