Seiko Cal. 6618 - 841

The Seiko 6618-841 represents an important milestone in Seiko's 1965 lineup. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-efdcf658bff3]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1965

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