Seiko Mod Guide
What is Seiko NH72 Movement? Complete Caliber Guide
Learn what Seiko NH72 movement is: skeleton-dial automatic caliber explained, NH72 vs NH35 differences, technical specs, applications, service requirements. Complete 2026 NH72 guide.
What is Seiko 4R38 Movement? Open-Heart Caliber Guide
Learn what Seiko 4R38 movement is: 23-jewel open-heart caliber explained, 4R38 vs 4R36 differences, Presage Cocktail Time applications, technical specs, how open-heart works. Complete 2026 guide.
Seiko NH Movements Guide: Specs, Differences, and How to Choose
This guide explains each NH caliber, their practical differences, and how to choose the right one for your watch project or purchase.
Seiko NH05 Movement Guide: Full Specs, Features, and Review
Seiko NH36 Movement: Complete Technical Guide 2026
What is the Seiko NH36 movement? A day-date automatic caliber with hacking and hand-winding. Learn NH36 specs, NH36 vs NH35 differences, accuracy, and which watches use it.
Miyota 8215 vs Seiko NH35: Which Movement Is Better?
Miyota 8215 vs Seiko NH35 comparison: specs, accuracy, features, and real-world performance. Find out which Japanese automatic movement suits your watch.
What Is Seiko 4R36 Movement? Full Specs Guide 2026
Complete guide to the Seiko 4R36 movement: full specs, 24 jewels, 41hr power reserve, hacking, hand-winding, day-date. Learn how it compares to NH36, 7S26, and 6R35.
Seiko NH vs 4R Movements: What's the Difference?
Learn the difference between Seiko NH and 4R movements: same specs, different sales channels. NH35 vs 4R35, NH36 vs 4R36 explained. Complete 2026 comparison guide.
Seiko 7N43 Movement: Complete Technical Guide
Comprehensive guide to the Seiko 7N43 quartz chronograph movement. Learn specifications, accuracy, maintenance, and how it compares to modern alternatives.