Seiko Cal. 3870 - 620

The 3870-620 is a sought-after Solar piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-57b986bc953e]

Also known as: Sumo, Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1990

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