Seiko Cal. 5648 - 309

Seiko 5648-309

The Seiko 5648-309 represents an important milestone in Seiko's 1969 lineup. Powered by the 5648 caliber with 36j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-a7cf09ed6f4a]

Also known as: Monster, Navigator

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
45mm
Case Thickness
9.4mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
36j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1969

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