Seiko Cal. 6620 - 975

This Spring Drive model from 1982 features a 36mm Titanium case. With its 20mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-75472f0760ac]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1982

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