S.U.F Helsinki · Microbrand · Finland
S.U.F Helsinki Vetehinen MK I
- Eterna Caliber 3901A
- 42 mm × 13 mm
- Sapphire crystal
- 300 m water resistance
Where to buy
Movement
- Caliber
- Eterna Caliber 3901A
- Type
- Automatic
- Tier
- Upper
- Complications
- Hours, Minutes, Small seconds
- Frequency
- 28,800 bph
- Power reserve
- 65 h
- Hacking
- —
- Accuracy (factory)
- —
Case
- Diameter
- 42 mm
- Lug to lug
- —
- Thickness
- 13 mm
- Lug width
- 20 mm
- Material
- Steel (Outokumpu SUPRA 316L/4435)
- Hardening
- —
- Water resistance
- 300 m
- Crown
- Screw-down
- Case back
- —
- Bezel
- Unidirectional, lumed
Crystal & dial
- Crystal
- Sapphire
- Shape
- —
- Anti-reflective
- Inner
- Lume
- Super-LumiNova (indexes and hands)
Bracelet
- Bracelet
- —
Straps
- Strap 1
- Leather, Leather in various colours with a steel pin buckle
- Strap 2
- Rubber
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
Variants
| Name | Dial |
|---|---|
| Black | black |
About this entry
73% of key specs known. Missing: lug-to-lug, weight, hardening, bracelet offered.
S.U.F's first diving watch, replaced by the Vetehinen MK2 (slimmer case, solid caseback, Soprod with center seconds), so it is a separate model. Eterna Caliber 3901A (28,800 vph, 29 jewels, 65h) showing hours, minutes and small seconds; Outokumpu SUPRA 316L/4435 steel, 42mm, 13mm, 20mm lugs, 30 ATM, screw-in caseback and crown, 2.05mm sapphire crystal with inner AR, one-way rotating bezel with Super-LumiNova markings, harpoon ("devil-tail") hands. Galvanic coloured dials: the spec list says "Comblémine cadrans soignés" and the description names Kari Voutilainen as the dial maker. Lug to lug isn't stated. The MK I page says each colourway was limited to 26 pieces and the black dial in a steel case to 52; its photos also show blue, copper, green, grey and silver dials, a black DLC case and two Mo Coppoletta editions (from the photos and their file names), which have no store listings of their own. Both listings were sold out on 2026-10-31. Store prices exclude VAT; the pages show EUR 4,706 with Finnish VAT (25.5%).
Last verified: 2026-10-31. Edit or correct this entry.
Sources
- S.U.F Helsinki, Vetehinen MK I (product page, technical specs; "MK I is discontinued") accessed 2026-10-31
- S.U.F Helsinki, Vetehinen Black (product page, technical specs) accessed 2026-10-31
- S.U.F Helsinki, Vetehinen A (MK2 description comparing it with the MK I) accessed 2026-10-31