Seiko Cal. 4521 - 418

The Seiko 4521-418 represents an important milestone in Seiko's 1966 lineup. It features a White dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-ebdfd19423f0]

Also known as: Bullhead, Crown

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1966

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