Seiko Cal. 3870 - 927

The 3870-927 is a sought-after Automatic piece from Seiko's golden era. With its 20mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-c7604fe7f0b6]

Also known as: Tuna, Rally

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1998

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