Seiko Cal. 3816 - 641

The 3816-641 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3816 caliber with 33j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-7cf1744da884]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1989

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