Seiko Cal. 5687 - 418

The Seiko 5687-418 represents an important milestone in Seiko's 1970 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-22c9e7243eaf]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1970

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