Seiko Cal. 4537 - 339

This Hand-Winding model from 1987 features a 42mm Two-Tone case. It features a Champagne dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-b0b29f5caaad]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1987

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