Seiko Cal. 6691 - 910

This Quartz model from 1973 features a 39mm Titanium case. It features a Green dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-a5cf27fa6edb]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1973

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