Seiko Cal. 4539 - 858

This Spring Drive model from 1992 features a 42mm Two-Tone case. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-2facc71bc922]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1992

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