Seiko Cal. 3887 - 155

The Seiko 3887-155 represents an important milestone in Seiko's 1971 lineup. Powered by the 3887 caliber with 35j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-7da2d752620d]

Also known as: Panda, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1971

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