Seiko Cal. 5648 - 343

Seiko 5648-343

The Seiko 5648-343 represents an important milestone in Seiko's 1970 lineup. Powered by the 5648 caliber with 23j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-6e35e11d4586]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
38mm
Case Thickness
8.5mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
30m
Dial Color
Black
Jewels
23j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1970

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seikata-wm-6e35e11d4586