Seiko Cal. 5686 - 741

The Seiko 5686-741 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-c8be60d711d8]

Also known as: Tuna, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1978

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