Seiko Cal. 6683 - 903

The 6683-903 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-d6122a6e925d]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1972

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