Seiko Cal. 0778 - 728

Seiko 0778-728

The 0778-728 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0778 caliber with 27j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-bc6b24a31163]

Also known as: Tuna, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
14.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
50m
Dial Color
Green
Jewels
27j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1993

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seikata-wm-bc6b24a31163