Seiko Cal. 6145 - 748

The 6145-748 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6145 caliber with 22j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-e5cc612ac1f0]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1977

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