Seiko Cal. 6616 - 275

The 6616-275 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6616 caliber with 21j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-415123a0a6ca]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1970

Related Models

• Seiko 3826-527
• Seiko 7070-726
• Seiko 6315-442
• Seiko 5694-810
• Seiko 5236-876
• Seiko 5668-456
• Seiko 5665-262
• Seiko 5296-368
• Seiko 4528-172
• Seiko 3812-578
• Seiko 4546-392
• Seiko 5236-714