Seiko Cal. 6650 - 154

The 6650-154 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6650 caliber with 29j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-320a820d3a68]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1975

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