Seiko Cal. 3871 - 377

The 3871-377 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-a9623d3d9a8d]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1975

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