Seiko Cal. 5240 - 818

This Hand-Winding model from 1991 features a 40mm Titanium case. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-52d86e0fe8eb]

Also known as: Sumo, Rally

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1991

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