Seiko Cal. 5645 - 273

The Seiko 5645-273 represents an important milestone in Seiko's 1975 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-4135b1e5247f]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1975

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