Seiko Cal. 5693 - 990

Released in 1974, the Cal. 5693 with design code 990 was part of Seiko's domestic market collection. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-a1a327dc5cbd]

Also known as: Bullhead, Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1974

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