Seiko Cal. 6645 - 452

The 6645-452 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-dc2651119ed2]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1998

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