Seiko Cal. 6387 - 393

Released in 1969, the Cal. 6387 with design code 393 was part of Seiko's domestic market collection. Powered by the 6387 caliber with 23j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-335c41ec94be]

Also known as: Bullhead, World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1969

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