Seiko Cal. 3881 - 697

Seiko 3881-697

The 3881-697 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3881 caliber with 32j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-6ac5a5707144]

Also known as: Sumo

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
8.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
110m
Dial Color
Green
Jewels
32j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1998

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seikata-wm-6ac5a5707144