Seiko Cal. 6683 - 540

This Hand-Winding model from 1987 features a 36mm Stainless Steel case. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-448cb5d8542c]

Also known as: Helmet, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1987

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