Specifications:
Brand: LONGINES
Models: 1601, 1551, 12, 11, 1
Strap: Vintage leather strap for a gentlemanly taste
Strap Options: Brown alligator leather strap
Case Diameter: 25mm, 42mm, 44mm, 30mm, 39mm
Case Thickness: 4-7mm (thin), 7-11mm (average), 11-17mm (thick)
Case Material: Stainless steel
Dial Size: 40.00mm, 42.00mm
Strap Material: Alligator leather, stainless steel
Features: Moon phase adjustment, time setting crown (positions 1, 2, 3)
Water Resistance: 50m
Additional Information: Due to variations in production batches and measurement methods, actual dimensions may vary. The sizes provided on the page are for reference only. Similar models include 109, 11, 2, 12, 10, 6, 3, 8, 5, 1021. For more details, refer to models L29094783, L29094786, L29194976.
Instructions for adjusting date and moon phase:
1. Pull the crown out to position 2.
2. Rotate the crown forward to adjust the date.
3. Rotate the crown backward to adjust the moon phase.
4. After adjustment, push the crown back to position 1.
5. Manual adjustment of the date is required after months with fewer than 31 days.