Seiko Cal. 6231 - 610

The Seiko 6231-610 represents an important milestone in Seiko's 1970 lineup. Powered by the 6231 caliber with 22j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-697aea4adb3a]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1970

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