Aragon · Microbrand · United States
Aragon DF-40 (Seiko NH35)
- Seiko NH35A
- 40 mm × 13 mm
- Sapphire crystal
- 500 m water resistance
Movement
- Caliber
- Seiko NH35A
- Type
- Automatic
- Tier
- Entry
- Complications
- Date
- Frequency
- 21,600 bph
- Power reserve
- 41 h
- Hacking
- Yes
- Accuracy (factory)
- -20 / +40 s/day
Case
- Diameter
- 40 mm
- Lug to lug
- 47 mm
- Thickness
- 13 mm
- Lug width
- 20 mm
- Material
- —
- Hardening
- —
- Water resistance
- 500 m
- Crown
- Screw-down
- Case back
- Display
- Bezel
- Unidirectional
- Helium valve
- Yes
Crystal & dial
- Crystal
- Sapphire
- Shape
- —
- Anti-reflective
- Yes (side not stated)
- Lume
- —
Bracelet & clasp
- Style
- —
- Links per row
- —
- Solid end links
- —
- Solid links
- —
- Link attachment
- —
- Taper
- —
- Quick release
- —
- Half links
- —
- Clasp
- Push-button fold-over
- Micro-adjust
- —
- Diver extension
- —
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
- Stated weight (basis not given)
- 184 g
Prices
Variants
| Name | Reference | Dial |
|---|---|---|
| Blue | A638BLU | blue |
| Mother of Pearl | A638MOP | mother of pearl |
| Teal | A638TEA | teal |
| Yellow | A638YEL | yellow |
About this entry
63% of key specs known. Missing: case material, hardening, lume, bracelet links, end links, link attachment, clasp micro-adjust.
Sold as "DF-40 NH35" (listing "ARAGON DF 40 NH35"), in Aragon's DF (Depth Fighter) series. Brand spec list (each colour's page): "SII NH35 Date with 24 jewels", movement from Japan; 40mm case, 47mm lug to lug, 13mm thick (not said whether with the crystal); sapphire crystal with anti-reflective coating (side not stated); screw-down crown; stainless steel bracelet, 9" long and 20mm wide (lug width taken from the bracelet width), "Fliplock push button solid deployant clasp"; 500m; exhibition case back; unidirectional rotating bezel; helium valve; weight 6.5 oz (recorded as 184g, not said what was weighed). The mother-of-pearl page adds "Mother of Pearl dial". Case material and lume aren't stated. On 2026-11-01 teal and yellow were $200 and in stock, blue $200 and mother of pearl $230 were marked sold out.
Last verified: 2026-11-01. Edit or correct this entry.
Sources
- Aragon, DF-40 NH35 product page (A638BLU), sold out accessed 2026-11-01
- Aragon, DF-40 NH35 product page (A638MOP), sold out accessed 2026-11-01
- Aragon, DF-40 NH35 product page (A638TEA) accessed 2026-11-01
- Aragon, DF-40 NH35 product page (A638YEL) accessed 2026-11-01