Seiko Cal. 6337 - 409

Seiko 6337-409

The 6337-409 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6337 caliber with 28j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-d307552c823a]

Also known as: Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
13.4mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
150m
Dial Color
Burgundy
Jewels
28j
Frequency
28,800 bph
Power Reserve
54 hours
Year
1973

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