Seiko Cal. 6377 - 278

This Spring Drive model from 1973 features a 46mm Stainless Steel case. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-7bdb574dad98]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1973

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