Seiko Cal. 6630 - 937

This Spring Drive model from 1992 features a 45mm Gold-Plated case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-27ee3b0331e2]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1992

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