Seiko Cal. 6321 - 753

The Seiko 6321-753 represents an important milestone in Seiko's 1975 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-0eda008cac21]

Also known as: Turtle, Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1975

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