Seiko Cal. 6642 - 631

Seiko 6642-631

The 6642-631 is a sought-after Kinetic piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-c2bf5e588f81]

Also known as: Sea Horse, Arnie

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
13.9mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Green
Jewels
23j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1987

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