Seiko Cal. 3878 - 133

The 3878-133 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3878 caliber with 30j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-8fe73fde9924]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1972

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