Seiko Cal. 6689 - 546

This Quartz model from 1976 features a 40mm Stainless Steel case. Powered by the 6689 caliber with 18j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-48253fbabec0]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1976

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