Seiko Cal. 6640 - 905

This Hand-Winding model from 1996 features a 38mm Gold-Plated case. It features a Black dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-03a83a216353]

Also known as: Rally, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1996

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