Seiko Cal. 4550 - 737

The 4550-737 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4550 caliber with 34j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-106e04cd7502]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1996

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