Seiko Cal. 4541 - 275

This Quartz model from 1977 features a 35mm PVD Black case. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-d665240af6e8]

Also known as: Helmet, World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1977

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