Seiko Cal. 3878 - 406

Released in 1987, the Cal. 3878 with design code 406 was part of Seiko's domestic market collection. Powered by the 3878 caliber with 24j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-44480dd65dd2]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1987

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