Seiko Cal. 0781 - 551

The Seiko 0781-551 represents an important milestone in Seiko's 1991 lineup. Powered by the 0781 caliber with 19j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-156cb08936ba]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1991

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