Seiko Cal. 6610 - 735

This Spring Drive model from 1977 features a 41mm Hardlex-Coated Steel case. Powered by the 6610 caliber with 29j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-138dcc679959]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1977

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