Seiko Cal. 4560 - 240

The 4560-240 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-aa3f6f22a68e]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1986

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