Seiko Cal. 6149 - 557

The 6149-557 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6149 caliber with 31j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-5aea7ab2897d]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1965

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