Seiko Cal. 4513 - 918

The Seiko 4513-918 represents an important milestone in Seiko's 1977 lineup. With its 19mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-e530788d0f0a]

Also known as: Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1977

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