Seiko Cal. 3837 - 720

Released in 1999, the Cal. 3837 with design code 720 was part of Seiko's domestic market collection. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-67fb8963bf1f]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1999

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