Seiko Cal. 4481 - 337

The 4481-337 is a sought-after Solar piece from Seiko's golden era. Powered by the 4481 caliber with 25j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-d8bc9f98dbf2]

Also known as: Tuna, World Timer

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1965

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