Seiko Cal. 6387 - 512

The 6387-512 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6387 caliber with 19j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-a817ca1a7599]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1988

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