Seiko Cal. 6387 - 260

The 6387-260 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6387 caliber with 29j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-ffb67aa02928]

Also known as: Monster, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1978

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