Seiko Cal. 7031 - 728

Seiko 7031-728

The 7031-728 is a sought-after Quartz piece from Seiko's golden era. With its 18mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-3c2a35b2b467]

Also known as: World Timer, Crown

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
8.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
40m
Dial Color
White
Jewels
17j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1998

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seikata-wm-3c2a35b2b467