Seiko Cal. 6615 - 818

The Seiko 6615-818 represents an important milestone in Seiko's 1967 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-09291866a18f]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1967

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