Seiko Cal. 3813 - 904

The 3813-904 is a sought-after Automatic piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-2ff9b5929324]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1998

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