Seiko Cal. 3888 - 615

The 3888-615 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3888 caliber with 29j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-dd09bdd851d4]

Also known as: Bellmatic, World Timer

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

39mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1969

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