Seiko Cal. 3870 - 287

The Seiko 3870-287 represents an important milestone in Seiko's 1981 lineup. It features a Silver dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-d40459c19814]

Also known as: Crown

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1981

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