Seiko Cal. 4531 - 510

The Seiko 4531-510 represents an important milestone in Seiko's 1982 lineup. It features a Green dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-0020980d24db]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1982

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