Seiko Cal. 4544 - 766

The Seiko 4544-766 represents an important milestone in Seiko's 1968 lineup. Powered by the 4544 caliber with 20j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-0417dbd631b8]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1968

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