Seiko Cal. 7023 - 771

Released in 1986, the Cal. 7023 with design code 771 was part of Seiko's domestic market collection. It features a Navy dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-922c5fb4fa42]

Also known as: Sumo, Shogun

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1986

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