Seiko Cal. 7143 - 828

Released in 1969, the Cal. 7143 with design code 828 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-81eee1fd45de]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1969

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