Seiko Cal. 5665 - 993

The 5665-993 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-753afb3aaec7]

Also known as: UFO, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1994

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