Seiko Cal. 4512 - 644

The Seiko 4512-644 represents an important milestone in Seiko's 1986 lineup. Powered by the 4512 caliber with 34j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-66a98132721d]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1986

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