Seiko Cal. 5699 - 653

This Spring Drive model from 1981 features a 37mm Titanium case. It features a Silver dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-1b22b7a5cf5c]

Also known as: UFO, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1981

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