Seiko Cal. 4550 - 866

The Seiko 4550-866 represents an important milestone in Seiko's 1994 lineup. Powered by the 4550 caliber with 25j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-dae188efa107]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1994

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