Seiko Cal. 7031 - 216

Seiko 7031-216

The 7031-216 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7031 caliber with 32j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-b9563f66bbbd]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
9.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
180m
Dial Color
White
Jewels
32j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1991

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