Seiko Cal. 3870 - 621

The 3870-621 is a sought-after Automatic piece from Seiko's golden era. With its 19mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-da189aefd694]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1981

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