Seiko Cal. 5665 - 387

Seiko 5665-387

The 5665-387 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5665 caliber with 21j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-edb2fdae1683]

Also known as: Tuna, Emperor

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
15.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
50m
Dial Color
White
Jewels
21j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1997

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seikata-wm-edb2fdae1683