Seiko Cal. 4540 - 345

This Spring Drive model from 1988 features a 40mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-22d4183de3f3]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1988

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