Seiko Cal. 6616 - 350

The Seiko 6616-350 represents an important milestone in Seiko's 1969 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-0c270158d9ef]

Also known as: Sumo, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1969

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