Seiko Cal. 7131 - 577

Released in 1965, the Cal. 7131 with design code 577 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-ceea175dd316]

Also known as: Shogun, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1965

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