Seiko Cal. 4556 - 787

The Seiko 4556-787 represents an important milestone in Seiko's 1991 lineup. Powered by the 4556 caliber with 27j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-1daae5221a38]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

27j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1991

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