Seiko Cal. 4540 - 920

This Spring Drive model from 1983 features a 42mm PVD Black case. It features a Burgundy dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-de756213395c]

Also known as: UFO, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1983

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