Seiko Cal. 6663 - 759

This Spring Drive model from 1999 features a 36mm PVD Black case. It features a Silver dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-c5700115206b]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1999

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