Seiko Cal. 5661 - 861

The 5661-861 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5661 caliber with 36j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-32b118065270]

Also known as: Bellmatic, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1973

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