Seiko Cal. 4544 - 612

The 4544-612 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4544 caliber with 30j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-bd0cc340fa1b]

Also known as: Shogun, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1989

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