Seiko Cal. 7155 - 684

Seiko 7155-684

This Automatic model from 1978 features a 42mm Stainless Steel case. Powered by the 7155 caliber with 30j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-7e58eee328b3]

Also known as: Tuna, Sportsmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
8.5mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Burgundy
Jewels
30j
Frequency
36,000 bph
Power Reserve
60 hours
Year
1978

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