Seiko Cal. 4513 - 728

This Spring Drive model from 1978 features a 38mm Titanium case. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-ed42970cabc3]

Also known as: Crown, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1978

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