Seiko Cal. 5621 - 677

Seiko 5621-677

The 5621-677 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5621 caliber with 22j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-950b6c9bf32d]

Also known as: Bullhead, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
42mm
Case Thickness
14.9mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Cream
Jewels
22j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1991

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seikata-wm-950b6c9bf32d