Seiko Cal. 6315 - 728

The Seiko 6315-728 represents an important milestone in Seiko's 1974 lineup. With its 18mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-e3143e2c4ca2]

Also known as: UFO, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1974

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