Seiko Cal. 6639 - 347

This Hand-Winding model from 1982 features a 40mm Stainless Steel case. It features a Silver dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-cd5bd21f125c]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1982

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