Seiko Cal. 6660 - 373

This Automatic model from 1976 features a 44mm Two-Tone case. Powered by the 6660 caliber with 36j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-39e1ba366518]

Also known as: Bullhead, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1976

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