Seiko Cal. 5634 - 159

Seiko 5634-159

The Seiko 5634-159 represents an important milestone in Seiko's 1981 lineup. Powered by the 5634 caliber with 33j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-98d3852d6ff6]

Also known as: Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
37mm
Case Thickness
11.4mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Silver
Jewels
33j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1981

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