Seiko Cal. 4451 - 641

The 4451-641 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4451 caliber with 18j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-43fcb25a7720]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1991

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