Category: Seiko Movement
Understand the real differences between Seiko NH36 and NH36A movements. Complete technical comparison covering specs, compatibility, and which to choose for your mod project.
Seiko NH36 vs 4R36: What's the Difference?
Posted by on December 01, 2025
NH36 and 4R36 are essentially the same Seiko movement—but with key differences in branding, availability, and use cases. Learn which one is right for your watch or mod project.
Seiko 7S26 vs 4R36 Movement: The Complete Comparison
Posted by on December 01, 2025
Detailed comparison of Seiko 7S26 vs 4R36 movements: hacking, hand-winding, accuracy, reliability, and whether upgrading is worth the cost. Expert analysis.
Seiko NH35A Movement: Complete Automatic Movement Guide
Posted by on November 28, 2025
Discover the Seiko NH35A automatic movement—the modder's choice for custom watch builds. Complete guide covering specs, NH35A vs NH35 vs 4R35 differences, parts compatibility, reliability, and why...
Seiko NH39 vs NH35: Complete Movement Comparison Guide
Posted by on November 28, 2025
Complete Seiko NH39 vs NH35 comparison: Learn key difference (date vs no-date), identical specs (24 jewels, 41hr reserve), dial compatibility, open-heart applications, modding uses. Expert guide.
Grand Seiko 9S85 Movement Ultimate Guide
Posted by on November 27, 2025
Deep technical analysis of Grand Seiko's 9S85 Hi-Beat movement—36,000 vph precision, 55-hour power reserve, and mechanical excellence. Complete comparison vs 9S65 and Swiss alternatives.
Is the Seiko NH34 a Good Movement? Complete Quality Review
Posted by on November 27, 2025
Is the Seiko NH34 GMT movement worth buying? Complete review covering NH34 reliability, accuracy expectations, strengths and weaknesses, how it compares to alternatives like Miyota 9075 and ETA 289...
NH35 vs NH34: What's the Difference? Complete Comparison Guide
Posted by on November 27, 2025
What's the difference between Seiko NH35 and NH34 movements? Complete comparison covering technical specs, GMT functionality, price differences, accuracy, power reserve, which movement suits your n...
Seiko NH70 Movement Guide: Skeleton Automatic Specs & Review
Posted by on November 27, 2025
Complete Seiko NH70/NH70A skeleton movement guide. Learn NH70 specifications, whether NH70 has date function, NH70 vs NH72 vs NH35 comparison, skeleton movement pros and cons, and whether NH70A de...
Seiko 4R35 vs 4R36: Complete Movement Comparison Guide
Posted by on November 25, 2025
Complete Seiko 4R35 vs 4R36 comparison: Learn the key difference (date vs day/date), identical specs (21,600 bph, 41hr reserve, 23/24 jewels), shared features (hacking, hand-winding), which Seiko w...
Seiko 4R36 Movement: Complete Day-Date Automatic Guide
Posted by on November 25, 2025
Complete guide to Seiko's 4R36 day-date automatic movement. Learn how 4R36 differs from 4R35, technical specifications, day complication functionality, where it appears in Seiko collections, accura...
Seiko SKX007 Movement: Complete 7S26 Caliber Technical Guide
Posted by on November 25, 2025
The Seiko SKX007 houses the legendary Caliber 7S26-0020 automatic movement—a 21-jewel workhorse featuring 41-hour power reserve, 21,600 bph beat rate, and Seiko's Magic Lever bi-directional winding.