Seiko Cal. 4436 - 716

This Spring Drive model from 1989 features a 36mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-b4ceaed089e0]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1989

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