Seiko Cal. 5240 - 863

The Seiko 5240-863 represents an important milestone in Seiko's 1974 lineup. It features a Green dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-9c72d718ca4c]

Also known as: Samurai, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1974

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