Seiko Cal. 4544 - 561

The Seiko 4544-561 represents an important milestone in Seiko's 1978 lineup. Powered by the 4544 caliber with 22j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-eeccf58dd39e]

Also known as: World Timer, Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1978

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