Seiko Cal. 7121 - 731

Released in 1982, the Cal. 7121 with design code 731 was part of Seiko's domestic market collection. It features a Navy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-309beb3faacb]

Also known as: Samurai, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1982

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