Seiko Cal. 4531 - 998

The Seiko 4531-998 represents an important milestone in Seiko's 1999 lineup. It features a White dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-f4a041fa7317]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1999

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