Seiko Cal. 5646 - 396

Seiko 5646-396

The Seiko 5646-396 represents an important milestone in Seiko's 1983 lineup. Powered by the 5646 caliber with 34j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-18daf0d432e0]

Also known as: Tuna, Bellmatic

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
37mm
Case Thickness
13.1mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
70m
Dial Color
White
Jewels
34j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1983

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