Seiko Cal. 3873 - 730

Released in 1999, the Cal. 3873 with design code 730 was part of Seiko's domestic market collection. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-efa5a00bf8ab]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1999

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