Seiko Cal. 5271 - 161

The Seiko 5271-161 represents an important milestone in Seiko's 1981 lineup. It features a Black dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-3e71bb27467a]

Also known as: Helmet, Crown

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1981

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