Seiko Cal. 6231 - 678

The Seiko 6231-678 represents an important milestone in Seiko's 1978 lineup. Powered by the 6231 caliber with 24j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-028558edacc0]

Also known as: Pogue, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1978

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