Seiko Cal. 6639 - 395

This Hand-Winding model from 1980 features a 40mm Hardlex-Coated Steel case. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d94bfb325ac1]

Also known as: Rally, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1980

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