Seiko Cal. 6131 - 583

The Seiko 6131-583 represents an important milestone in Seiko's 1972 lineup. It features a Green dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-920a1a1540bc]

Also known as: Sumo, Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1972

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