Seiko Cal. 4531 - 890

The 4531-890 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-a321d6fe5efd]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1971

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