Seiko Cal. 7157 - 550

Seiko 7157-550

The Seiko 7157-550 represents an important milestone in Seiko's 1986 lineup. Powered by the 7157 caliber with 25j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-7878e095d782]

Also known as: Shogun, Baby Tuna

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
44mm
Case Thickness
15.6mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Green
Jewels
25j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1986

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