Seiko Cal. 4539 - 305

This Spring Drive model from 1999 features a 41mm Hardlex-Coated Steel case. It features a White dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-e4be20f71536]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1999

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