Seiko Cal. 6133 - 787

This Spring Drive model from 1999 features a 36mm Hardlex-Coated Steel case. With its 19mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-be7ab709f2b5]

Also known as: UFO, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1999

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