Seiko Cal. 4551 - 909

The Seiko 4551-909 represents an important milestone in Seiko's 1998 lineup. Powered by the 4551 caliber with 31j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-70ef7ddd6013]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1998

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