Seiko Cal. 5615 - 300

The 5615-300 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5615 caliber with 20j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-e8c8a6790509]

Also known as: UFO, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1997

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