Seiko Cal. 6387 - 725

Released in 1978, the Cal. 6387 with design code 725 was part of Seiko's domestic market collection. Powered by the 6387 caliber with 29j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-60b6981df2ed]

Also known as: Turtle, World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1978

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