Seiko Cal. 6653 - 720

This Spring Drive model from 1978 features a 40mm Titanium case. It features a Burgundy dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-a3bb35e6232b]

Also known as: Sportsmatic, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1978

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