Seiko Cal. 6636 - 847

This Solar model from 1978 features a 42mm Titanium case. With its 20mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-75c3c2c7f32f]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1978

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