Movement

Movement

Cal. 3021LU Manual winding

Diameter

30mm (13 1/4 Line)

Thickness

5.6mm

Frequency

28,800/h (8beat/Sec - 4Hz)

Jewels

18

Power Reserve

Around 45hour

Moon phases indicated

59 days round the watch Adjustable by pulling crown down one level.

* Newly designed main and balance bridge, clock, click spring for pursuing a comfortable winding.

Case

Material

Stainless steel (SUS904L)
After the cutting work by the ultra-high precision micromachining machine, polishing.

Case diameter

37.0mm

Case thickness

10.8mm

Glass

Curved sapphire crystal with non-reflective coating on the double-side.

Case Back

Screw Case Back

Dial, Hands

Dial material

German Silver

Brand logo

Engraving by Ultra High-Precision and High-Speed Micro Fine Machining Center.

Minute, Second scale

Engraving by Ultra High-Precision and High-Speed Micro Fine
Machining Center. The ring part of the dial outer periphery incorporates a separate component.

Index

Hand engraved by skilled craftsman
Inked by synthetic Japanese lacquer (Cashew). Brand logo, index and scale.

Moon phase

Moon phase disc in 18KYG, bead-blasted.
The moon is made from a separate component with a hand-engraved face, then fixed to the moon phase disc.

Hour and minute hands Material Steel

Heat-treated brood steel
Tip of the minute hand bent by hand to align with the minutes scale

Pin buckle

Pin buckle material

Stainless steel (904L)

Leather strap

Hand-stitched, pigskin leather, calf skin back
Made by Eidai Seisakusho (https://eidaiseisakujyo.tokyo/)

Size

Lug width 20 mm - Buckle width 16 mm

Box

Material

Exterior wood and resin board frame with fine paper
Interior in Alcantara.