Seiko Cal. 6681 - 301

This Spring Drive model from 1966 features a 37mm Two-Tone case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-608c3cfef8c5]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1966

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