Seiko Cal. 5681 - 361

Seiko 5681-361

The 5681-361 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5681 caliber with 22j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-a1d9e429baff]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
44mm
Case Thickness
8.2mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
50m
Dial Color
White
Jewels
22j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1988

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