Seiko Cal. 3866 - 173

The Seiko 3866-173 represents an important milestone in Seiko's 1990 lineup. Powered by the 3866 caliber with 22j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-70c980710adc]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1990

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