Seiko Cal. 6620 - 191

The 6620-191 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6620 caliber with 24j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-611253be71ec]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1986

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