Seiko Cal. 4428 - 316

Seiko 4428-316

The 4428-316 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4428 caliber with 34j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-d84f1317c8ad]

Also known as: Panda, Silverwave

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
35mm
Case Thickness
9.6mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Blue Sunburst
Jewels
34j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1974

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