Seiko Cal. 3817 - 870

The 3817-870 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-063cbef8aec3]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1993

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