Seiko Cal. 5618 - 971

Seiko 5618-971

This Quartz model from 1973 features a 42mm Hardlex-Coated Steel case. Powered by the 5618 caliber with 17j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-35840c31380f]

Also known as: UFO, Baby Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
8.5mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Green
Jewels
17j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1973

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