Side by side
Orient Star M34 F8 Skeleton Hand WindingvsGrand Seiko SBGA375
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures
Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures
At a glance
13 of 29 specs differDiameter
M34 F8 Skeleton Hand Winding39mm
SBGA37540mm
Power Reserve
M34 F8 Skeleton Hand Winding70h
SBGA37572h
Water Resistance
M34 F8 Skeleton Hand Winding50m
SBGA375100m
MSRP
M34 F8 Skeleton Hand Winding$2,860
SBGA375$5,600
Full specifications
Case
7 specsCategory
Mechanical
Dress
Diameter
39mm
40mm
Thickness
10.8mm
12.5mm
Lug-to-Lug
46.5mm
46.2mm
Lug Width
20mm
19mm
Finish
—
—
Water Resistance
50m
100m
Crystal & Dial
1 specsDial Color
Grey
—
Movement
4 specsCaliber
Orient F8B61
Grand Seiko 9R65
Type
Manual
Spring Drive
Power Reserve
70h
72h
Jewels
22
0
Pricing
1 specsMSRP
$2,860
$5,600
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Orient Star M34 F8 Skeleton Hand Winding vs Grand Seiko SBGA375 gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Orient Star M45 F8 Skeleton Hand WindingvsGrand Seiko SBGA375Grand Seiko SBGA375vsZelos Skyraider 40 SkeletonManufaktur Waldhoff PioneervsGrand Seiko SBGA375Duxot Atlantica Skeleton AutomaticvsGrand Seiko SBGA375MMI Watches NOR-LIGHT: "BLUE DATE SAPPHIRE DIAL" MODEL NL-05 (PROTOTYPE - REFURBISHED) (DELIVERY: 1ST WEEK OF JUNE 2026)vsOrient Star M34 F8 Skeleton Hand WindingGeckota Classic ChronotimervsOrient Star M34 F8 Skeleton Hand Winding