Seiko Cal. 4540 - 145

The Seiko 4540-145 represents an important milestone in Seiko's 1980 lineup. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-e89b4a06d68c]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1980

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