Seiko Cal. 6387 - 318

The Seiko 6387-318 represents an important milestone in Seiko's 1977 lineup. Powered by the 6387 caliber with 26j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-4bc2fa1be117]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

46mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1977

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