Seiko Cal. 5240 - 123

The Seiko 5240-123 represents an important milestone in Seiko's 1980 lineup. It features a Black dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-f6cedea7da4d]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1980

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