Seiko Cal. 3860 - 631

Seiko 3860-631

The 3860-631 is a sought-after Automatic piece from Seiko's golden era. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-f37c48327b7e]

Also known as: World Timer

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
35mm
Case Thickness
9.4mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
120m
Dial Color
Green
Jewels
30j
Frequency
28,800 bph
Power Reserve
65 hours
Year
1978

Related Models

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