Seiko Cal. 3870 - 935

The Seiko 3870-935 represents an important milestone in Seiko's 1987 lineup. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-4b4af9013441]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1987

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