Seiko Cal. 6154 - 881

The Seiko 6154-881 represents an important milestone in Seiko's 1969 lineup. Powered by the 6154 caliber with 29j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-6aed0caba91b]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1969

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