Seiko Cal. 6387 - 403

The 6387-403 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6387 caliber with 35j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-254c2019e649]

Also known as: Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1978

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