Seiko Cal. 6381 - 645

The 6381-645 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6381 caliber with 26j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-d741060f8e09]

Also known as: UFO, Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

26j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1993

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