Seiko Cal. 5278 - 403

Seiko 5278-403

The 5278-403 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5278 caliber with 33j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-e2d7f5c566aa]

Also known as: Turtle, Sumo

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
43mm
Case Thickness
12.3mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Burgundy
Jewels
33j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1991

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