Seiko Cal. 4446 - 654

The Seiko 4446-654 represents an important milestone in Seiko's 1971 lineup. Powered by the 4446 caliber with 24j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-a68b58b73529]

Also known as: Samurai, Bullhead

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1971

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