Seiko Cal. 4540 - 772

The Seiko 4540-772 represents an important milestone in Seiko's 1971 lineup. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-d81a1f955f7b]

Also known as: Silverwave, Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1971

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