Seiko Cal. 5613 - 864

The Seiko 5613-864 represents an important milestone in Seiko's 1991 lineup. It features a Black dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-8b49c1de5665]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1991

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