Minase · Mastercraft J3

Strap for Minase Mastercraft J3 J3-NGYNBE-SSD

The Minase Mastercraft J3 takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

  • 4.8 out of 5 · 270 reviews
  • Ships in 1–3 working days
  • Worldwide shipping
  • 30-day returns
  • 12-month warranty on manufacturing defects
  • Hand-stitched in Milan
Not sure about the right strap, or can't find your watch?Message me on WhatsApp
Lug width18 mm
Case diameter37 mm
ReferenceJ3-NGYNBE-SSD
FamilyMastercraft J3
MovementMiyota 90S5
Year2026
Case316L stainless Steel
Water resistance50

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Standard spring bar · length 18 mm · Ø 1.8 mm double flange

Minase Mastercraft J3 — watch

Your watch with our straps

Mastercraft J3 J3-NGYNBE-SSD with Vintage Brown Calfskin Strap — Natural Patina
Mastercraft J3 J3-NGYNBE-SSD with Brown Italian Leather Strap
Mastercraft J3 J3-NGYNBE-SSD with Black Saffiano Strap Ecru Stitching

Calf, Brown

Vintage Brown Calfskin Strap — Natural Patina

€98

★ 4.9 · 11

1 / 58

Real photos of the strap and the case. No generated images.

What length do I need?

Measure your wrist with a tailor's tape or a piece of string, comfortably snug.

Wrist circumferenceLength (long side / short side)
15.0–16.4 cm110 / 70 mm
16.5–17.8 cm115 / 75 mm
17.9–19.0 cm120 / 80 mm
19.1–20.4 cm125 / 80 mm
20.5–21.6 cm130 / 85 mm
21.7–22.9 cm135 / 85 mm
over 22.9 cmon request

The ready-to-wear strap is 115 × 75 mm. For a smaller or larger wrist I make it in the right length: order your length.

What I'm asked about the Minase Mastercraft J3 J3-NGYNBE-SSD

What strap size does the Minase Mastercraft J3 J3-NGYNBE-SSD take?

The Minase Mastercraft J3 J3-NGYNBE-SSD needs 18 mm between the lugs. It's the size I've been fitting on it for years.

Can the strap on the Minase Mastercraft J3 J3-NGYNBE-SSD be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Minase Mastercraft J3 J3-NGYNBE-SSD?

Yes, in 18 mm leather. On a 37 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Minase Mastercraft J3 J3-NGYNBE-SSD?

A 18 mm calf strap, for every day. You'll find it ready in the 18 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only

The atelier's website: casatimilano.com

Updated on · by Antonio Zichichi