Seiko Cal. 6655 - 307

This Spring Drive model from 1978 features a 42mm Two-Tone case. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-074e21269b8d]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1978

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