Seiko Cal. 3821 - 438

The 3821-438 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3821 caliber with 35j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-d48926215ba0]

Also known as: Tuna, World Timer

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1983

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