Seiko Cal. 3813 - 321

The Seiko 3813-321 represents an important milestone in Seiko's 1994 lineup. Powered by the 3813 caliber with 34j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-b7604d25e47e]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1994

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