Seiko Cal. 5265 - 643

The Seiko 5265-643 represents an important milestone in Seiko's 1977 lineup. Powered by the 5265 caliber with 23j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-7167093e5222]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1977

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