Vintage Seiko Water Drip Logo 5Y30-7009 1971 Tip to Tip of lugs:

Tip to Tip of lugs: 35

Model: Watersport

Caliber: P 75

I didn't open the case back because

Caliber: Valjoux 7733

Vintage Seiko Water Drip Logo 5Y30-7009 1971 Tip to Tip of lugs:Product Description Item: Wristwatch Brand: Seiko Model: Water Drip Logo Reference: 5Y30 7009 Movement: Quartz Case Material: Steel & Gold Tone Country: Japan Gender: Men's Size: 31. 5mm Band Material: Brown Lizard Product Measurements Diameter: 31. 5mm Lug Width: 18. 5mm Lug to Lug: 37. 5mm Thickness: 5. 5 mm Product Condition Overall Condition: Fair, overall condition for its age. Functions: Running and keeping time. Case: There are dents and wear