Seiko Cal. 4472 - 317

The Seiko 4472-317 represents an important milestone in Seiko's 1991 lineup. Powered by the 4472 caliber with 27j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-0dceb3ba65a5]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1991

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