Seiko Cal. 0789 - 428

Released in 1975, the Cal. 0789 with design code 428 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-f5abd723fce0]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1975

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