Seiko Cal. 3870 - 810

The 3870-810 is a sought-after Automatic piece from Seiko's golden era. With its 20mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-68b0cc9784ea]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1966

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