Seiko Cal. 6312 - 170

The 6312-170 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6312 caliber with 33j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-18df244abcbd]

Also known as: Sumo, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1973

Related Models

• Seiko 6140-114
• Seiko 5656-763
• Seiko 5681-562
• Seiko 3855-232
• Seiko 4472-136
• Seiko 5266-584
• Seiko 6189-694
• Seiko 5297-526
• Seiko 4532-974
• Seiko 7171-989
• Seiko 7079-442
• Seiko 5630-949