Which is cheaper, the Marathon OSAR-D (Original SAR with Date) Automatic 46mm or the Nivada Grenchen Autochron?

At MSRP the Nivada Grenchen Autochron is the cheaper of the two at $2,495, against $2,500 for the Marathon OSAR-D (Original SAR with Date) Automatic 46mm — a $5 gap before any retailer discounting.

Which is bigger, the Marathon OSAR-D (Original SAR with Date) Automatic 46mm or the Nivada Grenchen Autochron?

The Marathon OSAR-D (Original SAR with Date) Automatic 46mm wears larger at 46mm versus 38mm for the Nivada Grenchen Autochron — a 8mm difference across the dial.

What movement does the Marathon OSAR-D (Original SAR with Date) Automatic 46mm run compared to the Nivada Grenchen Autochron?

Both watches run automatic movements — the Marathon OSAR-D (Original SAR with Date) Automatic 46mm uses the Sellita SW220-1 and the Nivada Grenchen Autochron uses the ETA Valjoux 7750.

Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsNivada Grenchen Autochron

Q: Which has a longer power reserve, the Marathon OSAR-D (Original SAR with Date) Automatic 46mm or the Nivada Grenchen Autochron?

The Nivada Grenchen Autochron carries a 42-hour power reserve against 40 hours on the Marathon OSAR-D (Original SAR with Date) Automatic 46mm.

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Marathon OSAR-D (Original SAR with Date) Automatic 46mm

46mm-original-sar-w-date-on-3-piece-rubber-strap-kit-osar-d

MSRP $2,500

Nivada Grenchen Autochron

Autochron

MSRP $2,495

At a glance

16 of 29 specs differ

Diameter

OSAR-D (Original SAR with Date) Automatic 46mm46mm

Autochron38mm

Power Reserve

OSAR-D (Original SAR with Date) Automatic 46mm40h

Autochron42h

Water Resistance

OSAR-D (Original SAR with Date) Automatic 46mm300m

Autochron200m

MSRP

OSAR-D (Original SAR with Date) Automatic 46mm$2,500

Autochron$2,495

Full specifications

Case

9 specs

Crystal & Dial

3 specs

Dial Color

Black

Matt Blue Small texture +Super White Lum thick Printed 7506C Super Lum. Dots +White thick Printed logo

Indices

Applied

Baton

Lume

None

Super-LumiNova

Movement

3 specs

Caliber

Sellita SW220-1

ETA Valjoux 7750

Beat Rate

28,800 vph

28 vph

Power Reserve

40h

42h

Pricing

1 specs

MSRP

$2,500

$2,495

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Marathon OSAR-D (Original SAR with Date) Automatic 46mm

The Marathon OSAR-D (Original SAR with Date) Automatic 46mm is widely regarded as a rugged and legible timepiece, featuring a familiar geometric dial with MaraGlo lume and a white dial with applied hour markers that enhance legibility. Owners and reviewers note its 300-meter water resistance and the reliable Swiss-made Sellita SW200-1 automatic movement with improved shock protection. The watch is described as large, thick, and heavy, with some owners finding it comfortable on the wrist while others note its substantial presence, particularly at a table. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 46mm for its rugged build and excellent legibility.

A Blog to Watch·2

Reddit·2

Nivada Grenchen Autochron

Owners praise the Nivada Grenchen Autochron's dial, with one owner calling it amazing. The Autochron Mechaquartz is noted for its squared profile and the comfort of its expansion bracelet on smaller wrists.

Reddit·2

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