Seiko Cal. 5630 - 442

The Seiko 5630-442 represents an important milestone in Seiko's 1999 lineup. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-0c085fd28e66]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1999

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