Seiko Cal. 3880 - 391

The 3880-391 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-44d3a0d044c2]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1980

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