Seiko Cal. 5243 - 684

This Hand-Winding model from 1981 features a 42mm PVD Black case. Powered by the 5243 caliber with 25j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-6d123a45e8ea]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1981

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