Seiko Cal. 3870 - 668

Seiko 3870-668

This Hand-Winding model from 1975 features a 43mm Hardlex-Coated Steel case. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-b2e260c7d0f5]

Also known as: Turtle, Goldfeather

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
10.7mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Silver
Jewels
33j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1975

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