Seiko Cal. 3811 - 771

The Seiko 3811-771 represents an important milestone in Seiko's 1971 lineup. It features a Green dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-2bc418b0ebef]

Also known as: Sumo, Arnie

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1971

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