Seiko Cal. 6686 - 437

The Seiko 6686-437 represents an important milestone in Seiko's 1996 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-e7cb2be7b4b0]

Also known as: Sumo, Bellmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1996

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