Seiko Cal. 6387 - 230

The 6387-230 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6387 caliber with 25j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-79e70ef310ae]

Also known as: UFO, Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1969

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