Seiko Cal. 6131 - 510

The Seiko 6131-510 represents an important milestone in Seiko's 1977 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-3811a6fefdcb]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1977

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