Seiko Cal. 0731 - 306

Seiko 0731-306

The 0731-306 is a sought-after Automatic piece from Seiko's golden era. With its 22mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-e41f398c95ba]

Also known as: Sportsmatic, Crown

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
35mm
Case Thickness
14.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Burgundy
Jewels
26j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1991

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