Seiko Cal. 3870 - 248

The Seiko 3870-248 represents an important milestone in Seiko's 1978 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d30725f7de97]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1978

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