Seiko Cal. 7031 - 836

The Seiko 7031-836 represents an important milestone in Seiko's 1998 lineup. With its 18mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-e19174e67292]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1998

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