Seiko Cal. 6617 - 743

The Seiko 6617-743 represents an important milestone in Seiko's 1968 lineup. Powered by the 6617 caliber with 33j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-2a4ef4aee715]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1968

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