Seiko Cal. 6131 - 227

The 6131-227 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6131 caliber with 32j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-bcd2d7e7a6f5]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1994

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