Seiko Cal. 6131 - 755

The Seiko 6131-755 represents an important milestone in Seiko's 1980 lineup. It features a Silver dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-0c9e05a39a15]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1980

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