Seiko Cal. 3870 - 716

Seiko 3870-716

This Automatic model from 1967 features a 46mm Gold-Plated case. Powered by the 3870 caliber with 35j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-5944f1cc1ea5]

Also known as: Monster, Crown

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
9.9mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Black
Jewels
35j
Frequency
21,600 bph
Power Reserve
64 hours
Year
1967

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