Seiko Cal. 4550 - 899

The 4550-899 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4550 caliber with 27j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-0f4f0d290eb6]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1967

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