Seiko Cal. 6645 - 611

The Seiko 6645-611 represents an important milestone in Seiko's 1986 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-ef410be00b7f]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1986

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