Seiko Cal. 0720 - 178

Seiko 0720-178

The Seiko 0720-178 represents an important milestone in Seiko's 1972 lineup. Powered by the 0720 caliber with 28j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-7a2337416c5a]

Also known as: Bullhead, Baby Tuna

Specifications

Movement
Solar
Case Material
Titanium
Case Width
34mm
Case Thickness
9.1mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Black
Jewels
28j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1972

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