Seiko Cal. 6690 - 433

This Hand-Winding model from 1979 features a 43mm Titanium case. Powered by the 6690 caliber with 29j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-149a21fc2a18]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1979

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