Seiko Cal. 6630 - 542

This Spring Drive model from 1970 features a 36mm Two-Tone case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-5487157c3ee4]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1970

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