Seiko Cal. 6389 - 760

The Seiko 6389-760 represents an important milestone in Seiko's 1975 lineup. It features a Green dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-27ecaec08d1d]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1975

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