Seiko Cal. 5285 - 387

The 5285-387 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5285 caliber with 19j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-cf0f694814c1]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1965

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