Ref. SGEH77
Case size: 40mmMovement: 7N42
The Seiko reference SGEH77 has a steel case measuring 40 mm across. The case has a thickness of 8.5 mm, with a water-resistance rating of 100 metres. The movement is quartz calibre 7N42, which contains 1 jewel and has a battery life of approximately 60 months. The watch has a sapphire crystal. The movement has an accuracy of plus or minus 15 seconds per month. The case has a lug width of 20 mm. A leather strap is attached to the watch.
Add to my inventory
Free account required - pre-fills all specs automatically
Last updated 9 Oct 2026Suggest a correction
TECHNICAL SPECIFICATIONS
GENERAL
Gender
Men
CASE
Diameter
40mm
Thickness
8.5mm
Lug Width
20mm
Case Material
Steel
Water Resistance
100m
Crystal
Sapphire Crystal
MOVEMENT
Movement Type
Quartz
Caliber
7N42
Jewels
1 jewels
BRACELET/STRAP
Bracelet/Strap
Leather
