Seiko Cal. 3870 - 411

Released in 1993, the Cal. 3870 with design code 411 was part of Seiko's domestic market collection. With its 18mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-ae0bb3274b51]

Also known as: Tuna, Navigator

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1993

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