Seiko Cal. 5617 - 607

Seiko 5617-607

The Seiko 5617-607 represents an important milestone in Seiko's 1977 lineup. Powered by the 5617 caliber with 20j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-6209dfa9fabe]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
38mm
Case Thickness
9.7mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Green
Jewels
20j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1977

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