Seiko Cal. 4441 - 923

The Seiko 4441-923 represents an important milestone in Seiko's 1969 lineup. Powered by the 4441 caliber with 30j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-bda53f74c8fc]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1969

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