Seiko Cal. 4520 - 749

The Seiko 4520-749 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-6bde698f1997]

Also known as: UFO, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1977

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