Seiko Cal. 6378 - 133

Released in 1987, the Cal. 6378 with design code 133 was part of Seiko's domestic market collection. With its 21mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-bd80174be156]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1987

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