Seiko Cal. 6635 - 665

This Hand-Winding model from 1983 features a 37mm Hardlex-Coated Steel case. It features a White dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-e0ee09055741]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1983

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