Seiko Cal. 5645 - 321

The Seiko 5645-321 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-76689c8bcfc0]

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1968

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