Seiko Cal. 6645 - 752

The Seiko 6645-752 represents an important milestone in Seiko's 1966 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-51b22099985e]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1966

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