Seiko Cal. 3881 - 667

The 3881-667 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-ba3037f89f6f]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1977

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