Seiko Cal. 7144 - 820

Released in 1989, the Cal. 7144 with design code 820 was part of Seiko's domestic market collection. Powered by the 7144 caliber with 36j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-55706888a098]

Also known as: Sumo, Navigator

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1989

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