Seiko Cal. 4540 - 738

Seiko 4540-738

The 4540-738 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4540 caliber with 35j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-1334006d93df]

Also known as: Bullhead, Bellmatic

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
46mm
Case Thickness
13.3mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Burgundy
Jewels
35j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1971

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seikata-wm-1334006d93df