Seiko Cal. 4539 - 917

This Hand-Winding model from 1969 features a 42mm Two-Tone case. It features a Champagne dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-cdd43615b8ca]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1969

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