Seiko Cal. 6320 - 999

This Spring Drive model from 1990 features a 37mm Gold-Plated case. With its 21mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-0bc5ea86a7db]

Also known as: Tuna, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1990

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