Seiko - Sport Chronograph 100 Black - 1988

Technical specifications:
brand: Seiko
year: 1990
movement: quartz  
function: date, chronograph, sub-second, alarm, moon phase
case material: steel
case back material: steel 
case dimensions without crown: 38.1mm
case dimensions with crown: 40mm
dimensions lug-to-lug: 44.1mm
thickness (crystal included): 10.3mm
dimensions lug width: 20mm
crown: original
strap: original 
Buckle: original steel 
crystal: mineral (condition: 9/10)
water-resistant: no
box: yes
paper: no
document: professional invoice

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