Seiko Cal. 6691 - 560

This Hand-Winding model from 1978 features a 43mm PVD Black case. Powered by the 6691 caliber with 21j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-9c5b77609778]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1978

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