Seiko Cal. 6381 - 153

The Seiko 6381-153 represents an important milestone in Seiko's 1990 lineup. Powered by the 6381 caliber with 33j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-cd528206c9a5]

Also known as: Bullhead, Silverwave

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1990

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