Seiko Cal. 6690 - 104

This Automatic model from 1967 features a 40mm Stainless Steel case. It features a Silver dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-2dfdb631f9fa]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1967

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