Seiko Cal. 3821 - 157

The 3821-157 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-7ab678531593]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1987

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