Seiko Cal. 3821 - 436

The 3821-436 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3821 caliber with 27j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-ab7ba7bb22b0]

Also known as: Monster, Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1986

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