Seiko Cal. 6331 - 993

The 6331-993 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6331 caliber with 18j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-09b15271d978]

Also known as: Goldfeather, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1989

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