Seiko Cal. 6642 - 705

This Hand-Winding model from 1996 features a 39mm Stainless Steel case. It features a Green dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-8a574435210f]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1996

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