Seiko Cal. 6387 - 423

The 6387-423 is a sought-after Solar piece from Seiko's golden era. Powered by the 6387 caliber with 35j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-b6a0460c01ec]

Also known as: Navigator, Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1979

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