Seiko Cal. 3887 - 378

The 3887-378 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3887 caliber with 25j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-f8b20ea8a59e]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1988

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