Seiko Cal. 4518 - 537

The 4518-537 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-16d80ae55fef]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1981

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